Scanner platen

ABSTRACT

A scanner is disclosed. The scanner has a platen with at least one edge of the platen uncovered.

BACKGROUND

Scanners come in a variety of types. Sheet-feed scanners use anautomatic document feeder (ADF) to move media to be scanned past a smallscanning window. Flatbed scanners typically have a page sized platenwhere a user can place the object to be scanned. Once the object isplaced on the platen, a scan head moves underneath the platen scanningthe media through the platen. Flatbed scanners may also have ADF's thatmoves the media past a smaller ADF scan window. Both types of scanners(flatbeds and sheet-feeds) can be configured as a standalone device, ormay be integrated into a multi-function peripheral (MFP) or copier.Another name for MFP's is all-in-ones.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an isometric exploded view of scanner 100 in an exampleembodiment of the invention.

FIG. 2 is an isometric top view of a bottom section 102 of scanner 100in an example embodiment of the invention.

FIG. 3 is a partial side view of a bottom section 102 in an exampleembodiment of the invention.

FIG. 4 is an isometric bottom view of a top bezel assembly 400 in anexample embodiment of the invention.

FIG. 5 is an isometric top view of the bottom section 502 of a scannerin another example embodiment of the invention.

FIG. 6A-6C are sectional side views showing where the platen is attachedto the top of a base in an example embodiment of the invention.

FIG. 7 is an isometric bottom view of platen 508 in an exampleembodiment of the invention.

DETAILED DESCRIPTION

FIGS. 1-7 and the following description depict specific examples toteach those skilled in the art how to make and use the best mode of theinvention. For the purpose of teaching inventive principles, someconventional aspects have been simplified or omitted. Those skilled inthe art will appreciate variations from these examples that fall withinthe scope of the invention. Those skilled in the art will appreciatethat the features described below can be combined in various ways toform multiple variations of the invention. As a result, the invention isnot limited to the specific examples described below, but only by theclaims and their equivalents.

FIG. 1 is an isometric exploded view of scanner 100 in an exampleembodiment of the invention. Scanner 100 has two main sections, an upperor top section 104, and a lower or bottom section 102. Top section 104may be as simple as a lid or top cover 118 (as shown) or may comprise anautomatic document feeder (ADF) (not shown for clarity). Top cover 118has an open position and a closed position. Top cover 118, when in theclosed position, holds media in a position to be scanned. Top section104 may couple to bottom section 102 at one end (as shown) or along oneside.

Bottom section 102 comprises base 106, platen 108, and top bezel 114.Base 106 is a generally rectangular open topped box forming a cavity.Base 106 has a back side 110, and a front side opposite the back side.The side opposite the hinge on the top cover is typically labeled as the“front” side. Base 106 has a left side 112, and a right side oppositethe left side. Base is typically a molded plastic part. A platen isgenerally a thin rectangular sheet or plate and is made from atransparent material, for example glass or Plexiglas. Platen 108attaches to the bottom surface of top bezel 114 along one end and oneside of platen 108. Together platen 108 and top bezel attach to the topof base 106, thereby closing off the cavity in base 106.

Bottom section 102 may also comprise an optical head or carriage, adrive system to move the carriage in a scanning axis X, electronics tocontrol the scanner, and the like. These items are not shown forclarity.

FIG. 2 is an isometric top view of bottom section 102 of scanner 100 inan example embodiment of the invention. Bottom section 102 comprisesbase 106, platen 108, and top bezel 114. In this example, the topsection (not show for clarity) of the scanner (the top cover or ADF)mounts to the bottom section using mounting features 224. Because themounting features 224 are on the opposite side from side 112, the hingefor the top side would be opposite side 112. Therefore the “front” sidewould be side 112, the left side would be side 110, and the right sidewould be opposite side 110. Top bezel 112 and platen 108 are attached tothe top of base 106. Top bezel 114 divides platen 108 into two sections,a flatbed window 220 and an ADF window 222.

Platen 108 attaches to the bottom surface of top bezel 114 along one endand one side of platen 108. Therefore top bezel 114 is on top of, andrises above, the top surface of platen 108. Because top bezel is on topof platen 108, top bezel 114 forms a reference datum 226 in the cornerof top bezel 114. The reference datum 226 is used for aligning mediaonto the flatbed window 220. Media is aligned to the datum 226 bysliding the media along the platen 108 towards the corner in top bezel114.

Top bezel 114 covers the right edge and the back edge of platen 108. Aportion of the front and left sides of platen 108 are not covered by topbezel 114. Base 106 has a width of W. The top surface of the front edgeof platen 108 is not covered by top bezel along portion X. Base 106 hasa length of L. The top surface of the left side 112 of platen 108 is notcovered by top bezel along portion Z. The top surface of platen 108forms the top surface of bottom section 102 of scanner 100 on both thefront and right sides of bottom section (along portions X and Z).Because the top surfaces of two sides of the platen 108 are uncoveredalong its edges, media can be removed from the scanner by sliding themedia directly off the platen 108 away from the top bezel 114.

FIG. 3 is a partial side view of bottom section 102 in an exampleembodiment of the invention. Bottom section 102 comprises base 106,platen 108 and top bezel 114. FIG. 3 shows the back part of bottomsection 102 near the back side 110 of base 106. Platen 108 is positionedon top of base 106. Top bezel 114 attaches to the top of base 106 alongthe back side 110 of base 106. Bezel 114 also extends on top of platen108 until line A. Top bezel 114 has angled face 328 that intersects withplaten 108, forming edge 326. Edge 326 forms one side of datum 236 (FIG.2) and is used to align the front edge of media to the flatbed scanwindow 220.

Line A is positioned at edge 326. To the left of line A, the top surface330 of top bezel 114 forms the top surface of bottom section 102 ofscanner 100. To the right of line A, the top surface 332 of platen 108forms the top surface of bottom section 102 of scanner 100.

FIG. 4 is an isometric bottom view of top bezel assembly 400 in anexample embodiment of the invention. Top bezel assembly 400 comprisestop bezel 114, platen 108, and support frame 440. The bottom surface oftop bezel 114 is attached to the top surface of platen 108 along theright and back sides of platen 108. Typically double sided tape is usedto attach the top bezel 114 to the platen 108 along sections 442 and444, however epoxy, glue or the like could be used instead. In someexamples clips may also be used to hold top bezel 114 to platen 108.Support frame 440 is attached to the bottom surface of platen along theleft side and front side, typically using double sided tape.

Alignment features 446 on the bottom side of top bezel and support frame440, fit inside base 106 (see FIG. 2) and align top bezel assembly 400to base 106. One or more screws may be used to attach top bezel 114 tobase 106 along the back and right side of top bezel 114. The screws maybe attached to the top bezel 114 through the bottom of base 106 topreserve a clean look to the top side of the bottom section of scanner100.

FIG. 5 is an isometric top view of the bottom section 502 of a scannerin another example embodiment of the invention. In this example, thereis no top bezel. Bottom section 502 comprises base 506, platen 508, andflatbed datum 558. Base 506 is a generally rectangular open topped boxforming a cavity. Base 506 may include mounting features 524 for an ADFor top cover. Base 506 is typically a molded plastic part. Platen 508 isgenerally a thin rectangular sheet or plate and is made from atransparent material, for example glass or Plexiglas. The bottom surfaceof platen 508, around its edges, attaches to the top of base 506,typically using double sided tape. Platen 108 seals off the cavity inbase 106. In other examples, a support frame may be attached to thebottom surface of platen (see FIG. 4) and the support frame may beattached to the base.

Flatbed datum 558 attaches to the top surface of platen 508 using epoxy,glue, double sided tape, or the like. Flatbed datum is used to positionmedia on platen 508 in preparation for a scan. The top surface of platen508 is the highest part of, and forms the top surface of, the bottomsection 502 of the scanner, except where the flatbed datum 558 isattached. Because the top surfaces of platen 108 are uncovered exceptwhere the flatbed datum 558 is located, media can be removed from thescanner by sliding the media directly off the platen 508 away from theflatbed datum 558.

Bottom section 502 may also comprise an optical head or carriage, adrive system to move the carriage in a scanning axis, electronics tocontrol the scanner, and the like. These items are not shown forclarity.

FIG. 6A-6C are sectional side views of where the platen is attached tothe top of base in an example embodiment of the invention. In FIG. 6A aside wall of base 506 is shown forming a ledge. The edge of platen 508is attached to the ledge using epoxy or double sided tape in gap 560.The edge of the platen is shown aligned with the edge of the ledge, butin other examples the edge of the platen 508 may extend beyond the edgeof the ledge.

In FIG. 6B a side wall of base 506 is shown forming a ledge with a lip670. Lip 670 may be used to help align platen on top of base 506. Thetop of lip 670 is shown below the top surface of platen 508 by distanceX. In other examples the top surface of lip 670 may be the same heightas the top surface of platen 506.

In FIG. 6C support frame 640 is shown attached to the bottom surface ofplaten 508. Support frame may be used to align the edge of platen 508 tothe side wall of base 506. Platen 506 may be attached to the top of base506 using glue, epoxy, double sided tape, or the like.

FIG. 7 is an isometric bottom view of platen 508 in an exampleembodiment of the invention. Platen 508 may have a border 774 printed onthe bottom surface of platen. A calibration strip 772 may also beprinted on the bottom surface of platen 508.

The examples describe above showed two edges of the platen as the topsurface of the bottom section of a scanner. In those examples, media canbe removed from the platen by sliding the media in a diagonal directionoff the platen. In other examples, only one edge of the platen may beuncovered and form the top surface of the scanner. For example, only thefront edge or only one side edge may be uncovered. In these examples,media could be removed from the platen by sliding the media directlysideways or backwards off the platen.

The examples describe above also show the scanner as a standalonescanner. In other examples, the scanner may be incorporated into a FAXmachine, a copier, or an MFP.

What is claimed is:
 1. A scanner, comprising: a base comprising anoptical scanning head; a platen disposed over the base; a bezel disposedon a surface of the platen, wherein a portion of the bezel divides theplaten into two sections comprising a flatbed window and an AutomaticDocument Feeder (ADF) window; and an ADF disposed over the base andaligned to deliver a document for scanning to the ADF window of thebezel; wherein an edge of the platen rests on a ledge extending outwardfrom a side wall of the base at a top of the side wall, with an adhesivebetween the edge of the platen and the ledge.
 2. The scanner of claim 1,wherein the flatbed window is accessible to receive a document forscanning when the ADF is in an open position.
 3. The scanner of claim 1,further comprising a top cover for the platen, the top cover having anopen position and a closed position, the ADF being incorporated into thetop cover, wherein, in the closed position a bottom surface of the topcover contacts a top surface of the platen thereby holding any documentplaced on the platen in place during a scan.
 4. The scanner of claim 1,wherein the ledge extending outward from the side wall ends at a samedistance that the platen being supported on the ledge extends beyond theside wall.
 5. The scanner of claim 1, wherein the ledge furthercomprises an upward lip abutting an outer edge of the platen.
 6. Thescanner of claim 1, wherein an uncovered edge of the platen extends onthe ridge beyond the side wall of the base.
 7. The scanner of claim 1,wherein the adhesive comprises epoxy or double-sided tape in a gapbetween a bottom surface of the platen and the ledge.
 8. The scanner ofclaim 1, wherein a border and a calibration strip are printed on thebottom surface of the platen.
 9. The scanner of claim 1, furthercomprising a reference datum attached to a top side of the platen toalign media on the flatbed window.
 10. A scanner, comprising: a basecomprising an optical scanning head; a platen disposed over the base; abezel disposed on a surface of the platen, wherein a portion of thebezel divides the platen into two sections comprising a flatbed windowand an Automatic Document Feeder (ADF) window; and an ADF disposed overthe base and aligned to deliver a document for scanning to the ADFwindow of the bezel; wherein the portion of the bezel that divides theplaten into two sections further comprises an edge sloped toward the ADFwindow to form an ADF paper path ramp, and wherein an edge of the platenrests on a ledge extending outward from a side wall of the base at a topof the side wall, with an adhesive between the edge of the platen andthe ledge.
 11. The scanner of claim 10, wherein the portion of the bezelthat divides the platen into two sections further comprises a flatbeddatum arranged opposite the ADF paper path ramp.
 12. The scanner ofclaim 1, wherein the portion of the bezel that divides the platen intotwo sections is adhered to an upper surface of the platen, the platenbeing a single sheet of material.
 13. The scanner of claim 12, whereinthe portion of the bezel that divides the platen into two sections isadhered to an upper surface of the platen by double-sided tape.
 14. Thescanner of claim 12, wherein the portion of the bezel that divides theplaten into two sections is adhered to an upper surface of the platen byglue or epoxy.
 15. A scanner, comprising: a base comprising an opticalscanning head; a platen disposed over the base; a bezel disposed on asurface of the platen, wherein a portion of the bezel divides the plateninto two sections comprising a flatbed window and an Automatic DocumentFeeder (ADF) window, and the bezel covers a top surface of at least oneedge of the platen; an ADF disposed over the base and aligned to delivera document for scanning to the ADF window of the bezel; and a supportframe attached to a bottom surface of the platen, the support frameextending from the platen down into the base and aligning an edge of theplaten to a side wall of the base.
 16. The scanner of claim 15, whereinthe flatbed window is accessible to receive a document for scanning whenthe ADF is in an open position.
 17. The scanner of claim 15, furthercomprising a top cover for the platen, the top cover having an openposition and a closed position, the ADF being incorporated into the topcover, wherein, in the closed position a bottom surface of the top covercontacts a top surface of the platen thereby holding any document placedon the platen in place during a scan.
 18. The scanner of claim 15,wherein the base comprises a side wall with a ledge extending outwardfrom the side wall at a top of the side wall, the platen being supportedon the ledge.
 19. The scanner of claim 18, wherein the ledge furthercomprises an upward lip abutting an outer edge of the platen.
 20. Thescanner of claim 15, wherein an edge of the platen extends beyond thesupport frame attached to the platen and beyond the side wall of thebase.